Improvement in lamp-chimneys



E. S. BLAKE.

. Lamp" Chimney.

- Inventor:

n. PETERS. mwmmmr. WJlh'mghm. n. c,

UNITED STATES PATENT OFFICE.

E. s. BLAKE, or PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN LAMP- CHIMNEYS.

To all whom, it may concern.-

Be it known that I, E. S. BLAKE, of Pittsburg, county of Allegheny, State of Pennsylvania, have invented a certain new and useful Improvement in Lamp-Chimneys; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon.

My improvement in lamp-chimneys relates to those which are composed of plates of glass and a metallic base and top. Its object is to keep the plates from inclining inwardly. This is effected by what I name a curb, which is either a belt or a plate of metal arranged interiorly near the top of the glass plates.

Figure 1 shows the curb in the belt form. The figure entire represents the metal framework of the lower part of the chimney without the glass plates or metallic top. The curb (in the belt form) is shown by b b. It may consist of a wire simply or narrow piece of thin metal bent so as to form the same number and length of sides exteriorly as the interior periphery of the glass part of the chimney.

Fig. 2 represents in perspective the metal parts of the chimney when the curb is in the plate form. The curb is here also represented by b b, aplate of thin metal, the exterior edge of which is similar in shape and dimensions to the other form of the curb as just described.

In either form the curb is supported in a horizontal position near the top of the glass plates by being secured to one or more metallic plates or rods, 0 0, Figs. 1 and 2, which plates or rods are also secured 'at the lower ends to the base A of the chimney. t

The plates or rods which connect the curb and base may, as above described, constitute one or-more sides or parts of sides of the chimney, or they may be wholly interior or exterior to the sides.

I may also remark that I do not regard the use of the curb as limited to a chimney of a particular number of sides.

When the curb is a plate, the plate may be employed to hold and support the metallic tube E or top of the chimney, as represented in Fig. 2.

What I claim as my invention, and dcsire to secure by Letters Patent, is-

A lamp-chimney having an inside curb constructed or supported substantially in the manner and for the purpose set forth.

E. S. BLAKE.

WVitnesses:

JOHN C. SEXToN, DAVID H. MARTIN. 

